Solute exchange between the umbilical vessels within the cord tissue

Investigate and characterize diffusive solute exchange between the umbilical vein and umbilical arteries within the human umbilical cord tissue, including quantifying the extent of intervascular coupling induced by cord geometry and coiling.

Background

Although placental exchange has been extensively studied and blood flow in the umbilical vessels has been analyzed in prior work, intervascular solute exchange within the cord tissue itself has not been characterized.

This paper proposes a theoretical and image-based modeling approach to quantify such exchange, motivated by the hypothesis that the cord’s coiled geometry strengthens diffusive coupling between the arteries and vein; the authors explicitly note the lack of prior investigation of this phenomenon.